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Stored procedures
Modifies the lightness of an image contained in an Image control.
Versions 17 and later
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. For more details, see The drawings.
New in version 17
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. For more details, see The drawings.
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. For more details, see The drawings.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
// Change the lightness of the image found in IMG_Image1
IMG_Image1.ModifyLightness(50)
Syntax
<Result> = <Image control>.ModifyLightness(<Variation of lightness> [, <Destination image>])
<Result>: Boolean
  • True if the change was performed,
  • False otherwise.
<Image control>: Control name
Name of the Image control to use.
<Variation of lightness>: Integer
Value included between -100 and +100. This value will be added to the current lightness of each pixel to get a new lightness.
<Destination image>: Optional character string (with or without quotes) or Image variable
Image where the transformed image will be drawn. This image can correspond to:
  • the name of an Image control.
  • the name of a Image variable.
If this parameter is not specified, the transformation will be performed in <Image control>
Remarks
Component: wd260pnt.dll
Minimum version required
  • Version 24
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